If you have rocksim, I'd check it out there first.
TLP kits are notoriously CG sensitive. I've built 4 of them, and each and every one emphasizes MMT placement, and nose cone weight placement.
Even having said that, several folks here on TRF have successfully modified TLP kits for 29mm MMT.
Clusters are cool, and fun. I'm not trying to discourage you, just procede with caution, 'cause the CG in most TLP kits do not give you much room to make modifications.